We're dividing 7216705 by 645 
Let's see how many times 645 fits into 7216705.

Step 1:
7 divided by 645 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 645

Let's proceed to step 2:
645 goes into 72 0 times with a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 72 to get 72.
Include the next digit (1) from the dividend after 72, then repeat: 721 / 645

Advancing to step 3:
If we divide 721 by 645, we get 1 and a remainder of 76.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 645 from 721 leaves us with 76.
Take the next digit (6) from the dividend and append it to 76, then repeat: 766 / 645

Moving on to step 4:
766 divided by 645 is 1 with a remainder of 121.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
The remainder is 121 after subtracting 645 from 766.
Grab the next digit (7) from the dividend, add it to 121, then carry on: 1217 / 645

On to step 5:
The number 645 fits into 1217 1 times, leaving a remainder of 572.
Record the quotient 1 as the next digit in the result. 
Result so far: 111.0
Deduct 645 from 1217 and we're left with 572.
Include the next digit (0) from the dividend after 572, then repeat: 5720 / 645

Going ahead to step 6:
5720 divided by 645 is 8 with a remainder of 560.
The next digit of our result is 8. 
Result so far: 1118.0
If we subtract 5160 from 5720, we get 560.
Grab the next digit (5) from the dividend, add it to 560, then carry on: 5605 / 645

Moving on to step 7:
5605 divided by 645 is 8 with a remainder of 445.
The next digit of our result is 8. 
Result so far: 11188.0
The remainder is 445 after subtracting 5160 from 5605.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

Going ahead to step 8:
645 can be fit into 4450 6 times, resulting in a remainder of 580.
Write down 6 as next digit of the result. 
Result so far: 11188.6
Subtracting 3870 from 4450 leaves us with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Let's proceed to step 9:
When dividing 5800 by 645, we get 8 with a remainder of 640.
The next digit of our result is 8. 
Result so far: 11188.68
Subtracting 5160 from 5800 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

On to step 10:
If we divide 6400 by 645, we get 9 and a remainder of 595.
Use 9 as the next digit of our solution. 
Result so far: 11188.689
If we take 5805 away from 6400, we end up with 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Let's proceed to step 11:
When dividing 5950 by 645, we get 9 with a remainder of 145.
The number 9 becomes the next digit in our result. 
Result so far: 11188.6899
The remainder is 145 after subtracting 5805 from 5950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Our division results in 11188.6899 with a remaining 0.00145.